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10 Cards in this Set
- Front
- Back
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How would you best determine if a soil is expansive?
A. Have the soil tested B. Add water until saturated C. Check with the landscaping contractor D. Pulverize it with a hammer while wearing safety glasses |
A.
All soils have some degree of expansiveness. A standard test rate's a soil's expansion from "very low" to "very high." The most reliable way to determine a soil's type is have it tested in a lab. |
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When would you wet brick masonry?
A. Never B. At any time C. When temperatures are above 32 degrees Fahrenheit D. Before building a brick wall in warm weather |
D.
Bricks should be wetted before they are laid in warm weather to improve bond between brick and mortar. |
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Lightweight concrete is best used for:
A. Curb and gutter B. 2nd floor decking C. 1st floor slab on grade D. Footings |
B.
Lightweight concrete offers the greatest advantage when used for upper story structures because it reduces the strength requirements for the supporting framework. It may also be used for insulting properties. |
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"Mortar joint" refers to:
A. Wood joint B. Asphalt joint C. Vertical or horizontal joint between masonry walls D. Pittsburgh joint |
C.
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A Freon recovery system is required
when: A. Replacing a burnt out rotor in a hermetic unit B. Overhauling a rooftop A/C unit C. Scrapping an old refrigeration unit D. All of the above |
D. Freon is a trade name for a family of CFC refrigerants. CFC's in general are classified by the EPA as hazardous to the atmosphere and their release into the air is strictly prohibited. If a sealed unit must be opened or evacuated after containing refrigerant, the refrigerant must be recovered.
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What is the diameter of #3 rebar?
A. 1/4'' B. 3/8'' C. 1/2'' D. 3/4'' |
B.
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To determine if a wall is plumb, use a :
A. Leveling rod and transit B. Builder's level C. Level and straight edge D. Framing square |
C.
A wall in "plumb" when it is perfectly vertical. You can use either a plumb bob or level and straight edge. |
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Stiles and rails are used on which of the following?
A. Furred walls B. Roofs C. Windows D. Slabs |
C.
Stiles and rails are parts of windows sashes or panel doors. A stile is a vertical divider, and a rail is horizontal. |
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Where would be the best place to look for a roof leak?
A. Valley flashings B. Ridge lines C. Holes in shingles D. Gutters |
A.
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Dividing watts by amps gives you:
A. Ohms B. Watts C. Volts D. Amp rating |
C.
The basic power formula is: P(watts) = E(volts) x I(amps) Solving for E gives you: E=P/I |
